较低的寄存器-C＃中的第一行符号

string s = "ConfigService";



if /s != string.Empty && char.IsUpper/s[0]//

{

 s = char.ToLower/s[0]/ + s.Substring/1/;

}



Console.WriteLine/s/;

string newString = oldString;

if /!String.IsNullOrEmpty/newString//

 newString = Char.ToLower/newString[0]/ + newString.Substring/1/;

public static string ToLowerFirstChar/this string input/

{

 string newString = input;

 if /!String.IsNullOrEmpty/newString/ && Char.IsUpper/newString[0]//

 newString = Char.ToLower/newString[0]/ + newString.Substring/1/;

 return newString;

}

string newString = "ConfigService".ToLowerFirstChar//; // configService

lower = source.Substring/0, 1/.ToLower// + source.Substring/1/;

string FirstLower/string s/

 {

 if/string.IsNullOrEmpty/s//

 return s;

 return s[0].ToString//.ToLower// + s.Substring/1/;

 }

public string GetStringWithFirstCharLowerCase/string value/

{

 if /value == null/ throw new ArgumentNullException/"value"/

 if /String.IsNullOrWhiteSpace/value// return value;



 char firstChar = Char.ToLowerInvariant/value[0]/;



 if /value.Length == 1/ return firstChar;



 return firstChar + value.Substring/1/;

}

public static string Upper_To_Lower/string text/

 {

 if /Char.IsUpper/text[0]/ == true/ { text = text.Replace/text[0], char.ToLower/text[0]//; return text; }



 return text;

 }



 public static string Lower_To_Upper/string text/

 {

 if /Char.IsLower/text[0]/ == true/ { text = text.Replace/text[0], char.ToUpper/text[0]//; return text; }



 return text;

 }

string test = "ConfigService";

string result = test.Substring/0, 1/.ToLower// + test.Substring/1/;

Char.ToLowerInvariant/yourstring[0]/ + yourstring.Substring/1/

string str = "ConfigService";

string strResult = !string.IsNullOrWhiteSpace/str/ && char.IsUpper/str, 0/ ? str.Replace/str[0],char.ToLower/str[0]// : str;